Electro-Voice CFID32-8 User manual

CFID32-8
CFID32T
Variable Power Paging/
Talk-Back Speaker
General Product Description
The CFID32-8 and CFID32T are 32-watt wide angle paging
projectors designed for high speech clarity under difficult noise
conditions.
The drivers employ rugged phenolic diaphragms, 1.5-inch diameter
voice coils and “rim centered” ferrite magnet structures for long life
and reliability.
The transformer model CFID32T includes connections for 25 V and
70 V distributed systems and a screwdriver operated power tap
select switch.
A nominal 55° horizontal by 75° vertical coverage pattern, together
with a low-frequency cutoff of 300 Hz, provides excellent articulation
in demanding applications.
The CFID32-8 (CFID32T) is molded from non-resonant and
weatherproof Cycolac. Exclusive Uni-Lok swivel mount allows
precision mounting in a variety of installations. The gland nut
connection insures a weather-tight seal.
Ideal for both indoor and outdoor applications, these drivers are
well suited for any installation requiring rugged, reliable performance.
Architects’ and Engineers’ Specifications
The loudspeaker shall have a rectangular reflex horn with an
exponential expansion rate. The driver employs a rugged phenolic
diaphragm and high-temperature rated 3.81 cm (1.5 in.) voice coil.
The axial frequency response will extend from 330 to 4,200 Hz and
the horn shall exhibit a low-frequency cutoff of 300 Hz. Sound
pressure level will be 107 dB (1 W/1 M) with a 500 to 5,000 Hz pink
noise signal applied, and the horn will produce a horizontal
beamwidth of 55° and a vertical beamwidth of 74° at 2 kHz.
The loudspeaker shall be capable of handling a 32-watt, 500 to
5,000 Hz pink noise signal with a 6 dB crest factor for a period of
eight hours.
Specifications:
Frequency Response:
........................................ 330-4,200 Hz ±5 dB (see Figure 3)
Power Handling, 8 Hours, 6 dB Crest Factor:
........................................ 32 watts (500-5,000 Hz pink noise)
Impedance:
.................................................................................... 8 ohms
Sound Pressure Level at 1 Meter, 1 Watt Input Averaged, Pink
Noise Band-Limited from 500 to 5,000 Hz:
..................................................................................... 107 dB
Horizontal Beamwidth:
55° @ 2 kHz (see Figure 2)
Vertical Beamwidth:
74° @ 2 kHz (see Figure 2)
Directivity Factor Rθ (Q):
16.3 @ 2 kHz
Usable Low-Frequency Limit:
..................................................................................... 300 Hz
Construction:
Non-resonant Cycolac horn material and durable diecast mounting
bracket. Resistant to environmental extremes.
Voice-Coil Diameter: ........................................... 3.81 cm (1.5 in.)
Magnet Weight: .................................................... 0.28 kg (0.63 lb)
Magnet Material:
...................................................................... Strontium ferrite
Flux Density:
................................................................................ 1.15 Tesla
Dimensions:
Height: ......................................................... 18.1 cm (7.1 in.)
Width: ......................................................... 36.5 cm (14.4 in.)
Depth: ......................................................... 31.8 cm (12.5 in.)
Net Weight: CIFD32-8: ............................................ 2.5 kg (5.6 lb)
CFID32T: ........................................... 2.7 kg (5.9 lb)
Shipping Weight: CFID32-8: .................................. 2.7 kg (6.0 lb)
CFID32T: ................................... 2.9 kg (6.3 lb)
The horn shall be weatherproof Cycolac capable of satisfactory
mechanical performance in extreme weather conditions with a
field-replaceable plug-in diaphragm and voice coil assembly.
A gland nut shall be provided for a weathertight seal and a Uni-Lok
swivel mount for rotation in both the horizontal and vertical planes.
The Uni-Lok shall fit standard 1/2-inch pipe thread.
The loudspeakers shall be the CFID32T, which includes a 70 V/25
V line matching transformer and weighs no more than 2.7 kg (5.9
lb) and the CFID32-8, which has a nominal impedance of 8 ohms
and weighs no more than 2.5 kg (5.6 lb).
COMMERCIAL

© Telex Communications, Inc. 02/2001
Part Number 38109-841 Rev A
U.S.A. and Canada only.
For customer orders, contact the Customer Service department at
800/392 3497 Fax: [phone]
For warranty repair or service information, contact the Service
Repair department at 800/685 2606
For technical assistance, contact Technical Support at 866/78 AUDIO
Please refer to the Engineering Data Sheet for warranty information.
Specifications subject to change without notice.
Installation
Loosen the gland nut in the side of the driver housing enough to admit the
loudspeaker wire/cable. Alternately, a 1/2-inch conduit fitting can be
substituted for the gland nut. However, the sealing washer must be retained.
The Uni-Lok swivel mount allows the speaker to be precisely positioned
and locked in place. A mounting plate is furnished with the Uni-Lok but
Y2-inch pipe may be used instead.
To flush mount the horn, finish drilling the four predrilled holes from the rear
four corners and insert #8 machine screw toggle bolts or screws to secure
the unit from the front.
A foam insert (CFID32F) is available to screen against nesting birds and
insects.
Polar Response
The directional characteristics of the CFID32 were measured by running a
set of horizontal/vertical polar responses, in Electro-Voice’s large anechoic
chamber, at each one-third-octave center frequency. The test signal was
one-third-octave pseudo-random pink noise centered at the indicated
frequencies. The measurement microphone was placed 6.1 m (20 ft.) from
the horn mouth, while rotation was about the waveguide geometric apexes.
These axes of rotation are quite close to the apparent (acoustic) apexes
across the frequency range of measurement. Errors attributable to the slight
differences between the geometric and acoustic apexes are reduced to an
inconsequential level by the relatively long, 20-foot measuring distance.
The horn was suspended freely with no baffle. The polar plots shown in
Figure 1 display the results of these tests. The center frequency is noted on
each plot. The wider plot on each chart is the horizontal polar (-) and the
narrower plot is the vertical polar.
Beamwidth
A plot of the CFID32’s 6 dB-down total included beamwidth angle is shown
in Figure 2 for each one-third-octave center frequency.
Frequency Response
Figure 3 shows the axial frequency response of the CFID32. It was measured
at a distance of 1 meter, using a swept sine wave.
Transformer
A transformer and power selector switch are installed in the rear housing.
The level of the CFID32T may be adjusted by moving the switch setting;
clockwise increases the power.
Low-Frequency Driver Protection
When frequencies below the low-frequency cutoff for the horn assembly
are fed to the driver, excessive current may be drawn by the driver. For
protection of driver, amplifier, and transformer (if driver with built-in
transformer is used), capacitor(s) in series with driver, or transformer primary
are recommended. Table 1 (below) indicates recommended values. The
values shown are for 200 Hz.Values for other frequencies can be determined
by using the formula:
C = [C200 x 200 ]
C200 = Values shown in the following table
Figure 1
CFID32 Polar Response
Figure 2
CFID32 Beamwidth vs. Frequency
Figure 3
CFID32 Frequency Response
(1 watt at 1 meter)
f f = New Frequency
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W5.200024.0 fm 0524 fm
W52.100042.0 fm 0052 fm
Table 1. Series Protection Capacitors for 200 Hz and Below
USA 12000 Portland A e South, Burns ille, MN 55337, Phone: [phone], FAX: [phone]
Canada 705 Progress A enue, Unit 46,Scarborough, Ontario, Canada, M1H2X1,Phone: [phone], FAX: [phone]
Switzerland Keltenstrasse 11, CH-2563 IPSACH, Switzerland, Phone: [phone]. FAX: [phone]
Germany Hirschberger Ring 45, D94315, Straubing, Germany, Phone: [phone], FAX: [phone]
France Parc de Courcerin, Alle Lech Walesa, Lognes, 77185 Marne La Vallee, France, Phone: [phone], FAX: [phone]
Australia Unit 23, Block C, Slough Business Park, Slough A enue, Sil erwater, N.S.W. 2128, Australia, Phone: [phone], FAX: [phone]
Hong Kong Unit E & F, 21/F, Luk Hop Industrial Bldg., 8 Luk Hop St., San PO Kong, Kowloon, Hong Kong, Phone: [phone], FAX: [phone]
Japan 2-5-60 Izumi, Suginami-ku,Tokyo, Japan 168, Phone: [phone], FAX:[phone]
Singapore 3015A Ubi Rd 1, 05-10, Kampong Ubi Industrial Estate, Singapore 408705, Phone: [phone], FAX: [phone]
Mexico A . Parque Chapultepec #66-201, Col. EI. Parque Edo. Mex. 53390, Phone: [phone], FAX: [phone]
UK 4, The Willows Centre, Willow Lane, Mitcham, Surrey CR4 4NX, UK, Phone: [phone], FAX: [phone]
Africa, Mid East 12000 Portland A e South, Burns ille, MN 55337, Phone: [phone], FAX: [phone]
Latin America 12000 Portland A e South, Burns ille, MN 55337, Phone: [phone], FAX: [phone]
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